Endress+Hauser Levelflex FMP52: Coated Guided Wave Radar for Corrosive Liquids

FMP52 is available with rod or rope probes and should be selected as a complete measuring system. Probe type and length, process connection, wetted materials, communication, housing, approvals and optional functions must all match the vessel and process conditions.

What Makes the FMP52 Different?

The defining feature of the FMP52 is its chemically resistant coated probe. Endress+Hauser describes it as a premium device for corrosive media, with FDA-listed wetted materials and rod or rope probe options. This differentiates it from the more general-purpose FMP51 when aggressive liquid compatibility is the main selection driver.

How Guided Wave Radar Works

Short radar pulses travel along the probe. When the pulses reach the product surface—or the boundary between two liquids—part of the signal is reflected to the transmitter. The elapsed travel time is converted into level. Because the signal follows a defined path, guided wave radar can remain reliable with moving surfaces, foam and changing media.

Levelflex FMP52 Key Specifications

Specifications depend on the selected order code and configuration. Always verify chemical compatibility, approvals and application limits against the current manufacturer documentation.

Rod Probe or Rope Probe?

Interface Measurement

FMP52 can measure total level and a clean interface between two liquids simultaneously. Successful interface measurement depends on the dielectric properties of both liquids, the interface condition and the absence of problematic emulsion layers. Provide actual product data when requesting a quotation.

Typical Applications

• Chemical storage tanks containing aggressive liquids
• Acid and alkali vessels
• Process tanks requiring coated wetted parts
• Liquid/liquid interface measurement
• Applications with foam, movement or changing media
• Hygienic duties using a suitable Tri-Clamp or DIN 11851 configuration

FMP51 or FMP52?

Information Needed for Correct Selection

1. Medium name, concentration and material compatibility requirements
2. Tank height, nozzle dimensions and probe installation position
3. Process temperature and pressure
4. Dielectric constant and whether interface measurement is required
5. Preferred rod or rope probe and required measuring range
6. Process connection, communication and hazardous-area approvals

Technical reference: Endress+Hauser Levelflex FMP52 official product information. Product specifications and availability may change; confirm the complete order code before purchasing.